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Engineering Mechanics - Force System Resultants

Exercise : Force System Resultants - General Questions
  • Force System Resultants - General Questions
11.

Determine the moment of force F3 about point A on the beam.

M3 = 6930 ft-lb
M3 = 6000 ft-lb
M3 = 3000 ft-lb
M3 = 4000 ft-lb
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.

Replace the force at A by an equivalent force and couple moment at P. Express the results on Cartesian vector form.

F = (-50i+20j+30k) N, M = (50i-130j+170k) N-m
F = (-50i+20j+30k) N, M = (-50i+60j+60k) N-m
F = (50i-20j-30k) N, M = (-50i+130j-170k) N-m
F = (50i-20j-30k) N, M = (50i-60j-60k) N-m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.

Replace the force at A by an equivalent force and couple moment at P. Express the results on Cartesian vector form.

F = (60j-80k) lb, M = (20i+160j+120k) lb-ft
F = (60j-80k) lb, M = (300j+560k) lb-ft
F = (60j-80k) lb, M = 20i lb-ft
F = (60j-80k) lb, M = (-160i-400j+120k) lb-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.

A force and couple act on the pipe assembly. Replace this system by an equivalent single resultant force. Specify the location of the resultant force along the y axis, measured from A. The pipe lies in the x-y plane.

R = 25k lb, y = -0.9 ft
R = 25k lb, y = 0.9 ft
R = 25k lb, y = 3.9 ft
R = 25k lb, y = -3.9 ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.

Determine the couple moment. Use a vector analysis and express the result as a Cartesian vector.

M = (800i-4800j-800k) lb-ft
M = (4000i-2000j+4000k) lb-ft
M = (-4000i+7000j-4000k) lb-ft
M = (-800i-4800j-800k) lb-ft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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